Webinar: 2024 IECC Commercial Mechanical Systems – What’s New in Section C403

The 2024 International Energy Conservation Code (IECC) introduces several key updates to Commercial mechanical system requirements found in Section C403—and these changes will directly affect plan reviews, HVAC designs, and field inspections.

Join us for a practical walkthrough of what’s new in C403 and how these updates will impact compliance and enforcement in your jurisdiction.

What you’ll learn:

•  New occupied-standby and door interlock control requirements
•  Expanded Demand Control Ventilation (DCV) provisions and space-type triggers
•  Updated humidification/dehumidification control limits
•  Revised ventilation and exhaust requirements, including dwelling-unit systems
•  Introduction to the Total System Performance Ratio (TSPR) compliance option
•  Key items plan reviewers and inspectors should verify under the new code